"We'll head to the Lowland Stakes first and take it from there, she's been up a long time," the Awapuni-based trainer said.
Dijon Bleu was making her first start beyond a mile at Te Rapa and she took it all in her stride for rider Jonathan Riddell, who replaced a suspended Leith Innes.
They settled back of midfield and when gaps opened in the straight the filly sprinted to the front 300m from home and forged clear for a hollow victory.
"I said to Jonathan to put her to sleep somewhere so she could relax," Latta said.
"There's a lot of fillies in there bred to stay and she's not, but she has got a blistering turn of foot."
Dijon Bleu had three-quarters of a length on the second-placed Mark Two, who came from last, at the post with Milseain third ahead of Rondinella.
"I did all the two-year-old work on her and it's a credit to Lisa to have kept her up for a while," Riddell said. "She's just a class horse."